US5083649A - Clutch release mechanism - Google Patents
Clutch release mechanism Download PDFInfo
- Publication number
- US5083649A US5083649A US07/670,300 US67030091A US5083649A US 5083649 A US5083649 A US 5083649A US 67030091 A US67030091 A US 67030091A US 5083649 A US5083649 A US 5083649A
- Authority
- US
- United States
- Prior art keywords
- piston
- release mechanism
- clutch release
- inner housing
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/087—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation the clutch being actuated by the fluid-actuated member via a diaphragm spring or an equivalent array of levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
Definitions
- the invention relates to hydraulic clutches and more particularly to an improved clutch release mechanism for releasing the drive through a hydraulically operated friction clutch.
- an inner tubular support member or inner housing is secured to a transmission housing.
- a drive shaft from a motor is connected through a friction clutch to a transmission input shaft which passes coaxially through the inner housing to the transmission.
- An annular piston is mounted to slide on the inner housing.
- a stationary outer housing in combination with the inner housing forms a cylinder surrounding an end of the piston.
- the inner housing, the outer housing and the piston form an expansion chamber for receiving pressurized hydraulic fluid.
- a bearing mounted on an opposite end of the piston engages release levers on the friction clutch. The bearing permits the release levers to rotate with the clutch, while the piston remains stationary. When pressurized hydraulic fluid is delivered to the chamber, the piston moves in an axial direction away from the transmission, moving the levers to disengage the clutch.
- clutch springs act on the release levers to push the piston back into the cylinder.
- the piston must move axially between an engaged position and a disengaged position. As the friction surface and other components of the clutch gradually wear, these positions gradually change. Consequently, the piston must be capable of moving over a greater path than is required at any given time to disengage and engage the clutch.
- the piston is an expensive machined part which is shaped to mount the bearing, to receive various hydraulic seals, and to provide a stop which retains the piston in the cylinder.
- a simple annular piston is formed separate from a machined bearing carrier.
- U.S. Pat. No. 4,660,702 shows the use of an elongated pin or bolt secured to the transmission to extend parallel to the axis of the clutch release mechanism. The piston moves a separate bearing carrier which is mounted to slide on the pin when moved in an axial direction. The pin or bolt prevents rotation of the bearing carrier.
- No. 2,757,769 shows forming a plurality of slots in the inner housing adjacent the thrust bearing.
- the slots extend parallel to the axis for the drive shaft.
- the piston is provided with a like plurality radial holes, each of which receives a ball bearing.
- the ball bearings extend into the slots to prevent rotation of the piston relative to the inner housing, while permitting the piston to slide in an axial direction.
- a thrust bearing is pressed on a stepped end of the piston both for engaging the rotating clutch release levers and for retaining the balls in the piston.
- an improved low cost release mechanism for a hydraulically actuated clutch.
- An annular cylinder is formed between annular inner and outer housings which are secured to be stationary relative to a transmission.
- the inner and outer housings are generally tubular shaped and extend coaxially about an input shaft to the transmission.
- a tubular clutch release piston has an inner end which extends into the cylinder and has an outer end on which a thrust bearing is mounted.
- a retainer ring is inserted into an annular groove formed on the exterior of the piston adjacent the outer end to position the thrust bearing on the piston.
- the inner housing, the outer housing and the piston form an expansion chamber for receiving hydraulic fluid to move the piston. Suitable sliding fluid seals and wiper seals are mounted on the inner housing and the outer housing to permit the piston to move axially relative to the housings without leakage of fluid from the cylinder.
- one or more grooves are formed in the inner housing to extend in the cylinder parallel to the axis of the inner housing.
- One or more radial holes are provided adjacent the inner piston end, with one hole aligning with each inner housing groove.
- a pin placed in each hole projects inwardly into the adjacent inner housing groove to prevent rotation of the piston relative to the stationary inner and outer housings while permitting the piston to move in an axial direction while disengaging and engaging the clutch.
- An annular groove is formed in the exterior surface of the piston adjacent the inner end. The groove is located to intersect the pin holes.
- a retainer ring is positioned in the annular piston groove. The retainer ring serves dual functions of retaining the pins in the piston holes and of retaining the piston in the cylinder. If the piston is extended too far from cylinder, the retainer ring abuts the outer housing to retain the piston in the cylinder.
- the piston comprises a simple tube which has one or more radial holes drilled adjacent the inner end and has two retainer ring grooves formed on its outer surface, one formed adjacent each end of the tube. Consequently, the piston is much simpler and much less expensive to manufacture than prior art pistons for clutch release mechanisms.
- FIG. 1 is a fragmentary cross sectional view through an improved clutch release mechanism according to the invention.
- the clutch release mechanism 10 is mounted to extend coaxially about a rotatable shaft 11.
- the shaft 11 has a splined end 12 which connects through a friction clutch (not shown) to an engine and has an end 13 which connects to a vehicle transmission (not shown).
- a fragmentary portion of a housing 14 for a transmission or a transmission bell is shown.
- the clutch release mechanism 10 is mounted on the housing 14, which remains stationary relative to the rotating shaft 11.
- the clutch is operated by a tubular piston 15 which is moved in an axial direction by hydraulic pressure.
- the piston 15 has an outer end 16 on which a thrust bearing 17 is mounted.
- a retainer ring 18 is positioned in an annular groove 19 formed in an outer surface of the piston 15 adjacent the end 16.
- the bearing 17 has an inner race 20 which is pressed onto the piston end 16 and abuts the retainer ring 18.
- a thrust ring 21 is pressed onto an outer race 22 of the bearing 17.
- the bearing 17 permits the thrust ring 21 to rotate relative to the piston 15.
- a plurality of clutch release levers 23 (one shown) press against the thrust ring 21.
- One or more drive pins 24 project from the thrust ring 21.
- the clutch release levers 23 rotate with the clutch about the axis 25 of rotation for the drive shaft 11.
- the drive pin 24 rotates the thrust ring 21 with the release levers 23, while the bearing 17 allows the piston 15 to remain stationary.
- An inner housing 26 and an outer housing 27 cooperate to form an annular cylinder 28 for receiving an inner end 29 of the piston 15.
- the inner and outer housings 26 and 27 are secured to the housing 14 and may be either separate housing members, as shown, or an integral unit.
- the piston 15 has a cylindrical inner surface 30 which slides on and closely engages an outer surface 31 of the inner housing 26 and has a cylindrical outer surface 32 which slides on and closely engages an inner surface 33 of the outer housing 27.
- An annular fluid seal 34 and an annular wiper 35 are mounted on the inner housing 26 to form a sliding seal between the surfaces 30 and 31.
- a fluid seal 36 and a wiper 37 are mounted on the outer housing 27 to form a sliding seal between the surfaces 32 and 33.
- a suitable source of hydraulic fluid (not shown) is applied, for example, through a fitting 38 to a chamber 39 formed between the cylinder 28 and the piston end 29.
- hydraulic fluid is forced into the chamber 39, the piston 15 is moved to the left to disengage the clutch.
- hydraulic pressure is relieved, a spring force exerted by the clutch on the release levers 23 forces the piston to the right and further into the cylinder 28.
- the seals 34 and 36 prevent fluid leakage from the chamber 39, while allowing the piston 15 to move.
- One or more grooves 40 are formed in the outer surface 31 of the inner housing 26.
- the grooves 40 are formed to extend parallel to the axis 25 and preferably are located in the chamber 39.
- One or more radial holes 41 are formed in the piston 15 adjacent the end 29.
- a member such as a ball or a pin 42 is positioned in each hole 41 to extend into an aligned groove 40.
- the pin 42 slides in the inner housing groove 40 as the piston 15 moves in an axial direction. At the same time, the pin 42 engages the groove to prevent rotation of the piston 15 relative to the stationary inner housing 26.
- the hydraulic fluid in the chamber 39 lubricates the pins 42 and the surfaces of the grooves 40 against which the pins 42 slide.
- An annular groove 43 is formed in the outer piston surface 32 to intersect each of the holes 41.
- a retainer ring 44 is positioned in the groove 43.
- the retainer ring 44 serves a dual function. First, by having the groove 43 intersect the holes 41, the retainer ring 44 keeps the pins 42 in the holes 41. Second, the retainer ring 44 serves as a stop to retain the piston 15 in the cylinder 28. As the piston 15 is withdrawn from the cylinder 28, the retainer ring 44 abuts an interior surface 45 on the outer housing 27 to prevent total withdrawal of the piston 15 from the cylinder 28.
- the clutch release mechanism 10 differs from prior clutch release mechanisms in that the piston 15 is in the form of a simple tube having two exterior grooves 19 and 43 for receiving retainer rings 18 and 44, respectively, and having one or more radial holes formed adjacent the inner piston end 29. This construction is considerably less expensive to manufacture than a piston having complicated machined surfaces. Further, a single simple retainer ring 44 functions both to retain pins 42 in the piston holes 41 to prevent rotation of the piston 15 relative to the inner and outer housings 26 and 27 and to retain the piston 15 in the cylinder 28.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims (8)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/670,300 US5083649A (en) | 1991-03-15 | 1991-03-15 | Clutch release mechanism |
CA002058037A CA2058037A1 (en) | 1991-03-15 | 1991-12-18 | Clutch release mechanism |
KR1019920001890A KR920018375A (en) | 1991-03-15 | 1992-02-10 | Clutch release mechanism |
JP4078726A JPH07174166A (en) | 1991-03-15 | 1992-03-02 | Clutch-release mechanism |
GB9204711A GB2253671B (en) | 1991-03-15 | 1992-03-04 | Clutch release mechanism |
DE4207609A DE4207609A1 (en) | 1991-03-15 | 1992-03-10 | CLUTCH RELEASE DEVICE |
MX9201086A MX9201086A (en) | 1991-03-15 | 1992-03-12 | CLUTCH RELEASE MECHANISM. |
FR9203045A FR2680213A1 (en) | 1991-03-15 | 1992-03-13 | MECHANISM FOR CLEARING A CLUTCH. |
AU12914/92A AU638202B2 (en) | 1991-03-15 | 1992-03-13 | Clutch release mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/670,300 US5083649A (en) | 1991-03-15 | 1991-03-15 | Clutch release mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US5083649A true US5083649A (en) | 1992-01-28 |
Family
ID=24689853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/670,300 Expired - Lifetime US5083649A (en) | 1991-03-15 | 1991-03-15 | Clutch release mechanism |
Country Status (9)
Country | Link |
---|---|
US (1) | US5083649A (en) |
JP (1) | JPH07174166A (en) |
KR (1) | KR920018375A (en) |
AU (1) | AU638202B2 (en) |
CA (1) | CA2058037A1 (en) |
DE (1) | DE4207609A1 (en) |
FR (1) | FR2680213A1 (en) |
GB (1) | GB2253671B (en) |
MX (1) | MX9201086A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5205387A (en) * | 1991-03-22 | 1993-04-27 | Valeo | Hydraulic actuator for a friction clutch |
US5443143A (en) * | 1992-09-17 | 1995-08-22 | Automotive Products, France, Sa | Clutch release apparatus |
US5480017A (en) * | 1993-09-14 | 1996-01-02 | Exedy Corporation | Annular hydraulic clutch release cylinder device |
FR2730532A1 (en) * | 1995-02-09 | 1996-08-14 | Valeo | HYDRAULICALLY CONTROLLED CLUTCH STOPPER FOR DIAPHRAGM CLUTCH, ESPECIALLY FOR MOTOR VEHICLES WITH A GUIDE SLEEVE |
US5794752A (en) * | 1996-12-30 | 1998-08-18 | Dana Corporation | Clutch actuator |
EP1152162A2 (en) * | 2000-05-05 | 2001-11-07 | Automotive Products UK Limited | Centralized hydraulic actuator for friction clutch |
US20030070542A1 (en) * | 2001-10-17 | 2003-04-17 | Zf Sachs Ag | Slave cylinder for a hydraulic system for actuating a friction clutch of a motor vehicle |
CN101463872B (en) * | 2007-12-17 | 2013-07-31 | 舍弗勒技术股份两合公司 | Operating device for a vehicle clutch |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4434594A1 (en) * | 1994-09-28 | 1996-04-04 | Schaeffler Waelzlager Kg | Actuating mechanism for friction clutch between IC engine and gear change transmission |
Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2501005A (en) * | 1943-12-24 | 1950-03-21 | Borg Warner | Hydraulic motor operated clutch |
US2757769A (en) * | 1952-12-17 | 1956-08-07 | Chrysler Corp | Clutch |
US2864480A (en) * | 1957-06-21 | 1958-12-16 | Int Harvester Co | Clutch actuating mechanism |
US2885049A (en) * | 1957-11-26 | 1959-05-05 | Int Harvester Co | Hydraulic fluid pressure operated device for clutches |
US3687253A (en) * | 1970-07-22 | 1972-08-29 | Clark Equipment Co | Power assisted clutch |
US3912058A (en) * | 1972-05-26 | 1975-10-14 | Skf Ind Trading & Dev | Hydraulic clutch and clutch brake operation |
US4102446A (en) * | 1974-01-22 | 1978-07-25 | Societe Anonyme Francaise Du Ferodo | Hydraulically operated clutch |
US4456111A (en) * | 1980-11-22 | 1984-06-26 | Fichtel & Sachs Ag | Hydraulic control system for a clutch |
US4561531A (en) * | 1981-12-15 | 1985-12-31 | Automotive Products Plc | Hydraulic slave cylinder with latch means for use with clutch release bearing |
US4585106A (en) * | 1982-05-28 | 1986-04-29 | Automotive Products Plc | Annular slave cylinder for motor vehicle clutch control mechanism |
US4585108A (en) * | 1983-03-21 | 1986-04-29 | Automotive Products Plc | Hydraulic slave cylinder for motor vehicle clutch control mechanism |
US4585107A (en) * | 1983-03-21 | 1986-04-29 | Automotive Products Plc | Throw-out bearing carrier member for motor vehicle clutch control mechanism |
US4585109A (en) * | 1983-03-21 | 1986-04-29 | Automotive Products Plc | Motor vehicle clutch control mechanism |
US4620625A (en) * | 1982-04-22 | 1986-11-04 | Federal-Mogul Corporation | Fluid actuated clutch assembly |
US4660694A (en) * | 1985-03-07 | 1987-04-28 | Automotive Products Plc | Prefilled hydraulic control apparatus for motor vehicle mechanical clutch |
US4684003A (en) * | 1983-09-30 | 1987-08-04 | Automotive Products Plc | Concentric slave cylinder for motor vehicle clutch control mechanism |
US4708228A (en) * | 1984-09-20 | 1987-11-24 | Automotive Products Plc | Bearing support for motor vehicle clutch control apparatus |
US4869355A (en) * | 1987-03-06 | 1989-09-26 | Valeo | Hydraulically controlled clutch actuation device |
US4913276A (en) * | 1987-06-27 | 1990-04-03 | Nippon Seiko Kabushiki Kaisha | Clutch releasing apparatus |
US4915202A (en) * | 1986-10-22 | 1990-04-10 | Automotive Products Plc | Concentrically mounted hydraulic clutch actuator |
US4995492A (en) * | 1989-10-10 | 1991-02-26 | Federal-Mogul Corporation | Reusable position retaining strap for clutch release mechanism |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4328883A (en) * | 1980-09-16 | 1982-05-11 | General Motors Corporation | Hydraulic actuator mechanism for a friction clutch |
US4660702A (en) * | 1985-04-24 | 1987-04-28 | Dana Corporation | Clutch release bearing |
-
1991
- 1991-03-15 US US07/670,300 patent/US5083649A/en not_active Expired - Lifetime
- 1991-12-18 CA CA002058037A patent/CA2058037A1/en not_active Abandoned
-
1992
- 1992-02-10 KR KR1019920001890A patent/KR920018375A/en not_active Application Discontinuation
- 1992-03-02 JP JP4078726A patent/JPH07174166A/en active Pending
- 1992-03-04 GB GB9204711A patent/GB2253671B/en not_active Expired - Fee Related
- 1992-03-10 DE DE4207609A patent/DE4207609A1/en not_active Withdrawn
- 1992-03-12 MX MX9201086A patent/MX9201086A/en unknown
- 1992-03-13 AU AU12914/92A patent/AU638202B2/en not_active Ceased
- 1992-03-13 FR FR9203045A patent/FR2680213A1/en not_active Withdrawn
Patent Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2501005A (en) * | 1943-12-24 | 1950-03-21 | Borg Warner | Hydraulic motor operated clutch |
US2757769A (en) * | 1952-12-17 | 1956-08-07 | Chrysler Corp | Clutch |
US2864480A (en) * | 1957-06-21 | 1958-12-16 | Int Harvester Co | Clutch actuating mechanism |
US2885049A (en) * | 1957-11-26 | 1959-05-05 | Int Harvester Co | Hydraulic fluid pressure operated device for clutches |
US3687253A (en) * | 1970-07-22 | 1972-08-29 | Clark Equipment Co | Power assisted clutch |
US3912058A (en) * | 1972-05-26 | 1975-10-14 | Skf Ind Trading & Dev | Hydraulic clutch and clutch brake operation |
US4102446A (en) * | 1974-01-22 | 1978-07-25 | Societe Anonyme Francaise Du Ferodo | Hydraulically operated clutch |
US4456111A (en) * | 1980-11-22 | 1984-06-26 | Fichtel & Sachs Ag | Hydraulic control system for a clutch |
US4561531A (en) * | 1981-12-15 | 1985-12-31 | Automotive Products Plc | Hydraulic slave cylinder with latch means for use with clutch release bearing |
US4620625A (en) * | 1982-04-22 | 1986-11-04 | Federal-Mogul Corporation | Fluid actuated clutch assembly |
US4585106A (en) * | 1982-05-28 | 1986-04-29 | Automotive Products Plc | Annular slave cylinder for motor vehicle clutch control mechanism |
US4585108A (en) * | 1983-03-21 | 1986-04-29 | Automotive Products Plc | Hydraulic slave cylinder for motor vehicle clutch control mechanism |
US4585109A (en) * | 1983-03-21 | 1986-04-29 | Automotive Products Plc | Motor vehicle clutch control mechanism |
US4585107A (en) * | 1983-03-21 | 1986-04-29 | Automotive Products Plc | Throw-out bearing carrier member for motor vehicle clutch control mechanism |
US4684003A (en) * | 1983-09-30 | 1987-08-04 | Automotive Products Plc | Concentric slave cylinder for motor vehicle clutch control mechanism |
US4708228A (en) * | 1984-09-20 | 1987-11-24 | Automotive Products Plc | Bearing support for motor vehicle clutch control apparatus |
US4660694A (en) * | 1985-03-07 | 1987-04-28 | Automotive Products Plc | Prefilled hydraulic control apparatus for motor vehicle mechanical clutch |
US4915202A (en) * | 1986-10-22 | 1990-04-10 | Automotive Products Plc | Concentrically mounted hydraulic clutch actuator |
US4869355A (en) * | 1987-03-06 | 1989-09-26 | Valeo | Hydraulically controlled clutch actuation device |
US4913276A (en) * | 1987-06-27 | 1990-04-03 | Nippon Seiko Kabushiki Kaisha | Clutch releasing apparatus |
US4995492A (en) * | 1989-10-10 | 1991-02-26 | Federal-Mogul Corporation | Reusable position retaining strap for clutch release mechanism |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5205387A (en) * | 1991-03-22 | 1993-04-27 | Valeo | Hydraulic actuator for a friction clutch |
US5443143A (en) * | 1992-09-17 | 1995-08-22 | Automotive Products, France, Sa | Clutch release apparatus |
US5480017A (en) * | 1993-09-14 | 1996-01-02 | Exedy Corporation | Annular hydraulic clutch release cylinder device |
US6202819B1 (en) | 1995-02-09 | 2001-03-20 | Valeo | Hydraulically controlled clutch release bearing for a diaphragm clutch, notably for a motor vehicle, having a guide sleeve |
WO1996024781A1 (en) * | 1995-02-09 | 1996-08-15 | Valeo | Hydraulically controlled release bearing for a diaphragm clutch, particularly for a motor vehicle, comprising a guide sleeve |
FR2730532A1 (en) * | 1995-02-09 | 1996-08-14 | Valeo | HYDRAULICALLY CONTROLLED CLUTCH STOPPER FOR DIAPHRAGM CLUTCH, ESPECIALLY FOR MOTOR VEHICLES WITH A GUIDE SLEEVE |
US6612414B2 (en) | 1995-02-09 | 2003-09-02 | Valeo | Hydraulically controlled clutch release bearing for a diaphragm clutch, notably for a motor vehicle, having a guide sleeve |
US5794752A (en) * | 1996-12-30 | 1998-08-18 | Dana Corporation | Clutch actuator |
EP1152162A2 (en) * | 2000-05-05 | 2001-11-07 | Automotive Products UK Limited | Centralized hydraulic actuator for friction clutch |
EP1152162A3 (en) * | 2000-05-05 | 2003-11-26 | Automotive Products UK Limited | Centralized hydraulic actuator for friction clutch |
US20030070542A1 (en) * | 2001-10-17 | 2003-04-17 | Zf Sachs Ag | Slave cylinder for a hydraulic system for actuating a friction clutch of a motor vehicle |
US6868951B2 (en) * | 2001-10-17 | 2005-03-22 | Zf Sachs Ag | Slave cylinder for a hydraulic system for actuating a friction clutch of a motor vehicle |
CN101463872B (en) * | 2007-12-17 | 2013-07-31 | 舍弗勒技术股份两合公司 | Operating device for a vehicle clutch |
Also Published As
Publication number | Publication date |
---|---|
GB2253671B (en) | 1994-08-03 |
MX9201086A (en) | 1992-10-01 |
KR920018375A (en) | 1992-10-21 |
CA2058037A1 (en) | 1992-09-16 |
DE4207609A1 (en) | 1992-09-17 |
AU638202B2 (en) | 1993-06-17 |
FR2680213A1 (en) | 1993-02-12 |
GB9204711D0 (en) | 1992-04-15 |
JPH07174166A (en) | 1995-07-11 |
AU1291492A (en) | 1992-09-17 |
GB2253671A (en) | 1992-09-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0718520B1 (en) | Wet clutch assembly | |
US4641978A (en) | Bearing system | |
US4869355A (en) | Hydraulically controlled clutch actuation device | |
US5027668A (en) | Loading cam mechanism for toroidal type continuously variable transmission | |
US5109964A (en) | Conical roller type clutch apparatus | |
EP0055548B1 (en) | Improvements in bearing arrangements | |
US2757769A (en) | Clutch | |
US5398776A (en) | Wheel hub drive | |
US4226095A (en) | Mechanism for maintaining contact between the driving side of torque transfering surfaces of a first rotatable member and the driven side of matching torque transfering surfaces of a second rotatable member | |
US5083649A (en) | Clutch release mechanism | |
US3540297A (en) | Power take-off | |
US6077183A (en) | Differential lock-up assembly for vehicles | |
US3127969A (en) | Mechanical clutch of the compact and self-contained type | |
US4903806A (en) | Hydraulically actuated release mechanism for a clutch | |
US4349207A (en) | Fluid actuated chuck | |
US5350042A (en) | Automatic adjusting apparatus for a disc brake | |
US4226318A (en) | Hydraulically actuated cone clutch | |
CN114576288A (en) | Radial piston machine with brake | |
US6173971B1 (en) | Plunger type rotary chuck assemblies | |
JP3401276B2 (en) | Vehicle transmission | |
US4526259A (en) | Hydraulically operable release arrangement | |
JP4041537B2 (en) | Transmission with a two-part clutch device | |
US4745998A (en) | Disengageable friction coupling for releasably joining an element about a shaft | |
GB2051262A (en) | Friction Synchronized Positive Clutch | |
US4044871A (en) | Hydraulically operated clutch release bearing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DANA CORPORATION, 4500 DORR ST., TOLEDO, OH. 43697 Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BAER, KURT R.;REEL/FRAME:005649/0090 Effective date: 19910315 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: TRANSMISIONES TSP, S.A. DE C.V., MEXICO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DANA CORPORATION;REEL/FRAME:010841/0037 Effective date: 19970902 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 12 |